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Artificial dentures designate the addition or substitution of the natural dentures or individual teeth by artificial prostheses.
The herausnehmbare artificial dentures are divided into conditionally and absolutely herausnehmbar. The difference is to be explained simply by the example of a door; the swinging door comes up "absolutely" without previous actions, the entry door only by previous unlocking with a key, thus conditioned opening. With the artificial dentures it is similar a tiny latch plate, a door latch plate or a hinge to open before with the finger or e.g. a bent upward paper clip and/or to unlock is, before the artificial dentures can be taken out.
"Absolutely" the herausnehmbare artificial dentures are either in the simplest and lowest-priced execution by a plastic prosthesis also from wire bent holding and supporting devices ("clips") over a model casting prosthesis with poured holding and supporting devices up to the comfortable execution as telescope prosthesis, which can be taken out simply by course at the artificial dentures of the mouth.
Each tooth, which is preservationable and preservation worthy, is to be received (see to No. B III 2 of the treatment guidelines common federal committee - to find under www.g-ba.de). The natural teeth are important as stop for artificial dentures and intercept chewing pressure flexibly. That particularly applies to the lower jaw. If several and/or the last teeth must be pulled, the final artificial dentures can be used only if the Kiefer healed completely completely. That takes usually some months. In this time one can live with an interim solution. This prosthesis is used usually immediately after the tooth pulling, while the schmerzlindernde syringe still has a lasting effect. Since Wundgebiet and Kiefer still change, it can be necessary to correct the seat of the interim solution several times. As prosthesis material plastic is most appropriate. The teeth should be from resistant to friction plastic. Ceramic(s) teeth see the genuine astonishing similarly, are however by break rather endangered as plastic teeth and "often rattle" in addition with the Zusammenbeissen. (Danger of fracture e.g. in the wash basin--take absolutely forwards out, towel insert)
Prosthesis camp one calls the ranges of the mouth mucous membrane with the Kieferknochen which are under which pass chewing forces on the hitting the prosthesis and which stop of the prosthesis serves. The quality of the prosthesis camp is decisive for an optimal functionality (herausnehmbaren) of the prosthesis.
By caked-on artificial dentures one understands crowns, bridges, Inlays from metal, ceramic(s) or plastic, which are fastened in the mouth on the ground stumps of the tooth by means of special adhesive or cement. After the stumps of the tooth in the mouth were prepared, a casting of the situation is taken and sent to a Dentallabor. There by tooth technicians at substantial technical expenditure fine-relating to crafts artificial dentures are then manufactured and supplied to the dentist as finished product.
A meanwhile wide-spread and for a long time proven procedure in the dentistry is the implant. It is used, if an individual tooth is missing and the neighbour teeth are healthy and therefore are not to be ground, or with toothless, very flat Kiefer, if a normal prosthesis does not hold alone.
The Kieferchirurg or the dentist implantiert artificial roots, e.g. from a titanium alloy, into which Kieferknochen, which lasts depending upon number of implants until three hours. After some months a welfare time (grow together the titanium with the bone substance) is then made by the dentist a casting in the mouth, which is then sent for the production of the artificial dentures (crown or bridge) into the Dentallabor. The finished artificial dentures are in-cemented by the dentist either or bolted on the implant, which makes a conditioned taking out possible by the dentist for control or cleaning.
(Note: Crowns, partial crowns and insert fillings (Inlays) are not, since they do not replace a missing tooth, artificial dentures in the actual sense, however because of the same manufacturing process are nevertheless often to it-counted.)
[z-system] == new methods in the Zahntechnik == artificial dentures are manufactured for some time also in the CAD/CAM procedure. This guarantees high and equal lasting material quality with unchanged costs.
New materials for artificial dentures are zirconium dioxide and titanium alloys, whereby the latters are manufactured already relatively for a long time in the casting procedure. The machine manufacturing makes now faultless production in very good quality and at the same time favourable prices possible, because the raw materials for titanium products, i.e. ilmenite, are rutile, Anatas and Brookit, world-wide in large quantities available.
Zirconium dioxide is a very hard ceramic(s), which exhibits several positive characteristics for artificial dentures:
Against the employment of zirconium dioxide however the still which are missing long-term experience and frequently necessary bonding with little biocompatible plastic cements speaks.
Zirconium dioxide is used as underbody for crowns and bridges, whereupon a kiefergelenkfreundliche softer ceramic(s) in the suitable tooth color is burned out. Thus a clearly improved imitation of natural teeth is possible, how it with crowns and bridges with metal portion were not attainable. The costs are somewhat higher than the conventional kind of manufacturing crowns and bridges (combination gold ceramic(s)). Since Goldlegierungen became however more expensive in the last years, the decision today often falls on zircon oxide.
Except crowns and bridges also implants are made of zircon dioxide, which make for the first time completely metal-free artificial dentures possible. Also in the telescope technology a metal-free primary telescope is possible by new software. Striking advantages of zircon:
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